mcdaniel



(No Model.)

0. MODANIEL. LIGHTNING ARRESTER FOR ELEGTRIG LINES.

- No. 295,267. Patented Mar. 18,1884.

INVENTOR ATTORNEYS.

BY. vaUA/M WITNESSES Limographer. yummy. D. c

To all whom, it may concern:

' UNTTTED STATES PATENT @FFICE.

CHARLES WV. MGDANIEL, OF GARTHAGE, MISSOURI.

LlGHTNlNG-ARRESTER FOR ELECTRIC LINES.

SPECIFICATION forming part of Letters Patent No. 295,267, dated March 18, 1884;.

Application filed November 1, 1883. (No model.)

Be it known that I, CHARLES W. Il/IODAN- IEL, of Carthage, in the county of Jasper and State of Missouri, have invented a new and Improved Lightning- Arrester for Electric WVires, of which the following is a full, clear, and exact description.

' The object of my invention is to provide a new and improved lightningarrester for preventing the coils oftelephone-instruments from being burned and destroyed by strokes of lightmng.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a longitudinal elevation of myimproved lightning-arrester. Fig. 2 is a crosssectional elevation of the same. Fig. 3 is a plan view of the same. view of the strip to be placed in the clamp when the slides are removed. Fig. 5 is a plan view of a series of arresters for a switch.

On an ebonite base, A, or a base of other insulating material, three U-shaped springclamps, B, are fastened by screws 0. On a strip, D,ofinsulating material, three U shaped metal plates, E, are held, which have the adjoining edges serrated or toothed and separated a short distance, as in the usual lightning-arresters. The end clamps B are connected under the base, by wires F with binding-posts G, to which the line-wires I are connected. The middle clamp B is connected under the base, by a wire, J ,with a binding-post, K, with which the ground-wire L is connected. The middle plate E on the insulating-strip D is provided with a handle-piece, H, of metal, around which a layer, H, of fine silk-covered wire is coiled, the ends of which wire are connected by screws and burrs with the end plates E on the strip D. The posts G are connected by wires M with plates N. between which a normally open shunt-plug, O, can be passed. \Vhen notin use,the normally-open shunt-plug O is contained in an aperture, P, in the base A. WVhen the slide or strip D is removed, a/ plate, Q, having hooks on the ends to pass he tween the end clamps B, is used. When several arresters are united on one base, the sev eral middle clamps B are united by a metal Fig. 4 is a perspective,

strip, R, on the end of which a binding-post, K, is secured, with which the gronnd-wireL is connected. When the coil around the handle-piece H is destroyed, the plug 0 is placed between the plates N, to normally open-shunt the arrester until a new coil can be put on, the binding-posts G then being in direct connection. An ordinary charge of electricity or lightning will not affect the arrester or the telephone apparatus; but if the stroke of lightning is strong enough to destroy or break the wire coils on the instrument, the coil H on the handle H will be'burned or destroyed first, and the electricity willbe spent by going to the ground through the handle-piece'H and the middle clamps B, and cannot injure the coils of the instrument.

The above-described lightning-arrester is very simple, and it occupies very little space. As the platesE on the strips D are Ushaped,

they cover a considerable surface of the groundstrip, asboth sides of the same are utilized.

Having thus described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In a lightning-arrester, the combination, with clamps on an insulating-base, of an insulating-strip on which as many metal plates are secured as there are clamps on the base,which strip is adapted to be passed into the clamps, and has its end plates connected with the linewires and to each other, and the intermediate plate or plates connected with the ground-wire, substantially as herein shown and described.

2. In a lightning-arrester, the combination, with an insulatingbase, A, of the clamps B, the strip, D, of insulating material, the U-shaped metal plates E on the strip D, of which plates E those at the ends are connected with a coil, H, on the handle H of the strip D, and the strip D and the intermediate plate or plates connected with the ground-wire, substantially as herein shown and described.

3. In a lightning-arrester, the combination, with the base, A, of insulating material, of the strip, D, of insulating material, the metal plates E on the same, of which those at the ends are connected with a coil, H, on the handle H of the strip D, the clamps B, the wires F, the posts G, with which posts the line-wires are connected, and a normally-open shunt connected with the posts G, substantially as herein shown and described.

4. In a lightning-arrester, the combination, with the base A, of the clamps B, the strip 1). the metal plates E on the same, the wires F, connecting the end clamps B with the bindingposts G, a wire connecting the intermediate clamp B with the ground-wire, the wires M, the plates N, and the plug 0, substantially as herein shown and described.

5. The combination, with abase, A, ofaseries of clamps, B, a metal strip, R, connecting the middle clamps B, the ground-wire L, the insulating-strip D. and the plates E on the strip I), substantially as herein shown and described.

6. The combination, with a base, A, of the clamps B, the insulating-strip D, the U shaped plates E on the strip D, and wires F, for connecting the end posts G with the end clamps B, and a wire, J, for connecting the ground post K with the intermediate clamp B, sub stantially as and for the purpose set forth.

7. The combination, with the base A, of the clamps B and the plate Q. provided with hooks adapted to be passed between the clamps B, substantially as herein shown and described.

CHARLES WV. MCDAXIEL.

\Vitnesses:

A. B. ELLIsoN, SAMUEL G. WILLIAMs. 

